89971821

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{7853}}^1$

素因数の和:7945

約数の個数: 24

約数和(自身を含む): 138858720

約数和(自身を除く): 48886899

約数列:

[1, 3, 9, 19, 57, 67, 171, 201, 603, 1273, 3819, 7853, 11457, 23559, 70677, 149207, 447621, 526151, 1342863, 1578453, 4735359, 9996869, 29990607, 89971821]

約数ペア:

[(1, 89971821), (3, 29990607), (9, 9996869), (19, 4735359), (57, 1578453), (67, 1342863), (171, 526151), (201, 447621), (603, 149207), (1273, 70677), (3819, 23559), (7853, 11457)]